Senior Linux Systems Administrator to migrate authentication infrastructure to Active Directory / Azure AD for a professional services client

• Current State: The client (a multinational investment bank and financial services company) is currently using a single firmwide Kerberos realm for Redhat Linux and Solaris systems using heavily customized MIT 1.10 KDCs. A custom ecosystem for credential management is built around this.
• Target State: The client is looking to modernize the infrastructure, moving away from dependence on a complex custom toolset and MIT Kerberos and towards the use of Microsoft Active Directory, replacing existing tooling with vendor-supplied utilities where possible and where custom coding is still required, prioritizing simplicity and maintainability.
• Work within the existing engineering teams to assist with the following functions:
• Analysis of realm-specific dependencies in existing tooling
• Software engineering to port a subset of existing utilities to the proposed authentication environment
• Engineering of new utilities to provide functionality our internal customers expect in the context of a novel authentication environment
• Engaging with other teams to integrate solutions into the existing environment
• Troubleshooting, testing and performance evaluation

• 5+ years' experience as an Systems Administrator or equivalent role.
• Demonstrated hands-on configuration and experience in Unix/Linux (e.g. Ubuntu, Solaris, RHEL) and Windows server environments.
• Demonstrated experience working with Active Directory & Azure Active Directory
• Demonstrated experience working with LDAP or Kerberos

S.i. Systems